BMW Engine Oil Filter Housing Gasket Kit - 11428637821KT8

Oil filter housing gasket leaks are a major issue on BMW's N5X family of engines. On the N20 and N26 engine the same oil filter housing and seals are used however the major catastrophic issue of serpentine belt failuire is less common. Regardless of that fact, oil leaks are never a good thing and a sever oil filter housing leak can result in oil leaks that result in a significant loss of engine oil.

The seal that causes this problem, to begin with, is a soft rubber seal that sits in the filter housing and seals it to the cylinder head. Over time this seal becomes brittle and shrinks losing its ability to make a leak-free seal. This, in turn, allows oil to leak down the side of the engine. Bad oil filter housing leaks can cause a lot of issues later on if not addressed as soon as possible.

Please note: Oil filter housing bolts to cylinder head should be torqued to 22Nm (~16 ft lbs) and the oil cooler to oil filter housing bolts should be torqued to 16Nm (~12 ft lbs). N20 and N26 engines require removal of the intake manifold to gain access to the rearward oil filter housing bolt. Intake manifold nuts should be torqued to 15Nm (-11 ft lbs). In order to remove the intake manifold the DME must also be removed from the heat sync on top of the manifold. When reinstalling the DME it is critical to make sure the mounting screws are torqued to 12Nm (-9 ft lbs) to prevent any vibration from loosening the assembly over time.

Fits These Cars